Shop › L-Tyrosine Vegan Amino Acid Image 1 of 1 L-Tyrosine Vegan Amino Acid $57.73 L-Tyrosine Vegan Amino Acid helps to decrease cognitive fatigue due to physically stressful situations. Quantity: Add To Cart Added! L-Tyrosine Vegan Amino Acid helps to decrease cognitive fatigue due to physically stressful situations. 220 g